The infirmities of genius illustrated by referring the anomalies in the literary character to the habits and constitutional peculiarities of men of genius., London, Saunders and Otley, 1833. 2 vol. (LCCN15). Available on Google Books: vol. 1 and vol. 2.

A Twelvemonth’s Residence in the West Indies, during the transition from slavery to apprenticeship; with incidental notice of the state of society, prospects, and natural resources of Jamaica and other islands., Philadelphia, Carey, Lea and Blanchard, 1835. 2 vol. (LCCN02). Available on Google Books: vol. 1 and vol. 2.

Juan Francisco Manzano, Poems by a slave in the island of Cuba, recently liberated; translated from the Spanish, by R. R. Madden, M.D., with the history of the early life of the negro poet, written by himself; to which are prefixed two pieces descriptive of Cuban slavery and the slave-traffic, by R. R. M., London, T. Ward & Co., 1840. [9]-188 p. (LCCN01)

Note that there is an ew edition, under a shorter title: The Life and Poems of a Cuban Slave : Juan Francisco Manzano, 1797–1854 / edited by Edward J. Mullen, Hamden, Connecticut : Archon Books, 1981. vii, 237 p. ISBN 0208019006. (LCCN81) – Madden's name as editor and translator seems to be given inside the book.

The Connexion between the Kingdom of Ireland and the Crown of England ... With an appendix of the Privy Council correspondence during ... 1811, 1812, 1816, 1817., Dublin : James Duffy, 1845. iii-340 p.

The History of the Penal Laws Enacted Against Roman Catholics, London : Thomas Richardson and Son, 1847. 1 vol. (80 p.). Available on Google Books.

The island of Cuba: its resources, progress, and prospects, considered in relation especially to the influence of its prosperity on the interests of the British West India Colonies., London, C. Gilpin; [etc., etc.] 1849. xxiv-252 p. (LCCN29)

The shrines and sepulchres of the Old and New World; records of pilgrimages in many lands and researches connected with the history of places remarkable for memorials of the dead, or monuments of a sacred character; including notices of the funeral customs of the principal nations, ancient and modern., London, T. C. Newby, 1851. 2 vol. (LCCN16)

The Life and Martyrdom of Savonarola, illustrative of the history of church and state connexion., London, T. C. Newby, 1853. 2 vol. (LCCN06). Available on Google Books: vol. 1 and vol. 2.

Historical Notice of Penal Laws Against Roman Catholics: Their Operation and Relaxation During the Past Century, of Partial Measures of Relief in 1779, 1782, 1793, 1829, and of Penal Laws which Remain Unrepealed, Or Have Been Rendered More Stringent by the Latest So-called Emancipation Act., London : Thomas Richarson and Son, 1865. 241 p. Available on Google Books.

The history of Irish periodical literature, from the end of the 17th to the middle of the 19th century, its origin, progress, and results; with notices of remarkable persons connected with the press in Ireland during the past two centuries., London : T. C. Newby, 1867. 2 vol. (vii-338 p. + 531 p.). Available on Google Books: vol. 1 and vol. 2.

The memoirs (chiefly autobiographical) from 1798 to 1886 of Richard Robert Madden. Edited by his son Thomas More Madden., London, Ward & Downey, 1891. 4-328 p., (LCCN40)